animal language

Do animals use language?! I do not think so. Language is different from just plain communication. The dictionary definition of language is:
communication by voice in the distinctively human manner, using arbitrary sounds in conventional ways with conventional meanings; speech.

us humans in our languages have various forms of meanings attributed to them.
these are:

*Arbitrariness: There is no rational relationship between a sound or sign and its meaning. (There is nothing intrinsically "housy" about the word "house".)
Cultural transmission: Language is passed from one language user to the next, consciously or unconsciously.
Discreteness: Language is composed of discrete units that are used in combination to create meaning.
Displacement: Languages can be used to communicate ideas about things that are not in the immediate vicinity either spatially or temporally.
Duality: Language works on two levels at once, a surface level and a semantic (meaningful) level.
Metalinguistics: Ability to discuss language itself.
Productivity: A finite number of units can be used to create a very large number of utterances. *

To find an animal discussing language itself, is never going to happen. Animals communicate on a context based manner in order to obtain primarly food, or social reinforcement. Theyre "languages" or means of communicating do not fall into our human category of language. They can maybe through instinct emit a common noise to mean predator or prey, but cannot sit around the fire and communicate about the predator and how mean it is, or how tasty the prey is. It is a very simple form of communication, it does not have dualistic meaning, doesnt have a written representation of the communication language, like ours, and does not have a cultural reinforcement. So i guess animal language is just a tag we have merely placed upon the simple and straightforward sounds or lights or smells they emit. We are fascinated about this becuase we would have another view of the world from a different species. It would be really nice speaking to my pet dog sparky, and ask him exactly what he thinks abou the moons and the stars and jupiter.